Master Pharmaceutical Calculations
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Questions and Answers

Which of the following is the correct amount of concentrated potassium chloride 15% w/v to be added to each 1000 mL infusion bag of 0.9% sodium chloride to yield 40 mmol of potassium?

  • 10.77 mL
  • 9.23 mL
  • 6.15 mL
  • 7.69 mL (correct)
  • What is the total volume of each 1000 mL infusion bag after adding the required amount of concentrated potassium chloride 15% w/v?

  • 1007.69 mL
  • 1023.08 mL
  • 1000.00 mL
  • 1015.38 mL (correct)
  • If the atomic weight of potassium was 40.0 instead of 39.0, how would the amount of concentrated potassium chloride 15% w/v needed to be added to each infusion bag change?

  • It would remain the same
  • It would decrease
  • It would increase (correct)
  • It is impossible to determine
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